In France l'Agence Nationale des Fréquences (ANFR- the "police" of frequencies) publishes some stories about unwanted interferences (in French). Latest one: h

In France l'Agence Nationale des Fréquences (ANFR- the "police" of frequencies) publishes some stories about unwanted interferences (in French). Latest one: https://www.anfr.fr/toutes-les-actualites/actualites/les-enquetes-de-lanfr-la-cle-qui-rendait-invisible-mais-qui-a-ebloui-les-gardiens-du-spectre/ https://www.anfr.fr/toutes-les-actualites/actualites/les-enq... Starting points: https://www.anfr.fr/publications/rapports-dintervention/brouillages-des-reseaux-de-telephonie-mobile/ https://www.anfr.fr/publications/rapports-dintervention/brou... https://www.anfr.fr/publications/lettres-dinformation/liste-des-lettres-dinformation/ https://www.anfr.fr/publications/lettres-dinformation/liste-... Also lots of opendata about towers, phones and radio measurements all over the country including interactive map: https://www.anfr.fr/toutes-les-actualites/actualites/les-donnees-de-lanfr-lopen-data-pour-un-maximum-de-transparence/ https://www.anfr.fr/toutes-les-actualites/actualites/les-don... Someone did a map of all licenced radio links from this data: https://carte-fh.lafibre.info/index.php?op_init=137 https://carte-fh.lafibre.info/index.php?op_init=137